An opinionated guide on developing web applications with Spring Boot.

A style guide for authors of Spring's technical documents (reference guides, getting started guides, tutorials, and so on).

Spring-Style-Guide

The Serene Doon Valley In the northern part of India lies a picturesque city called Dehradun with it's enchanting environs and salubrious weather the city is an epitome of beauty. It is idyllically located in the Garhwal region which is bestowed with natural abundance. The city is located 236 kilometers north of India's capital New Delhi. Being located on the foothills of the Himalayas the city holds a large number of inhabitants of Garhwal region who migrated to Dehradun in search of jobs, education and for a better standard of living. One can find the richness of Garhwali, Kumauni, Nepali, Jaunsari and various other cultures which are bonded with a thread of love by this city. In the past few years Dehradun has emerged as a major tourist hub as it is located close to some of the popular tourist destinations such as "The Queen of Hills" Mussoorie, "The Gateway to the Garhwal Himalayas" Rishikesh and the pious city of Haridwar. Dehradun which is also nicked named as Doon Valley became the capital of Uttarakhand state in 2000 which lead to rapid development of the city. Earlier the city which was far away from modernization, now proudly showcases its towering buildings, great infrastructure and prestigious institutions. Dehradun is also progressing as a major IT sector and its roots are also spreading in the field of publishing. Dehradun is a home to renowned educational institutions and government departments of India such as Indian Military Academy, the Ordnance Factory Dehradun, Survey of India, Wildlife Institute of India, Forest Research Institute, Wadia Institute of Himalayan Geology, Oil and Gas Corporation, University of Petroleum and Energy Studies and many more. Major attractions of Doon Valley -: Doon Valley is blessed with quintessence of nature and has various scenic spots which are visited by tourists all over the world. The famous tourists attractions have been mentioned below -: 1) Lachhiwala - Lachhiwala is an ideal picnic spot to head in summers which is located at a distance of 17 kilometers from Dehradun city on Haridwar-Rishikesh road. The place is surrounded by verdant forests; far away from the hustle and bustle of the cities. One can feel rejuvenated at the man-made pool which is safe for everybody. The lavish environs of Lachhiwala offer recreational activities like bird watching and trekking. The picnic spot enjoys the attention of a large number of tourists who visit this place frequently. One can take accommodation in the Forest Rest House which offers comfort as well as luxury to its guests. The best time to visit Lachhiwala is during summers. 2) Buddha Temple or Mind Rolling Monastery - Buddha temple or Mind Rolling Monastery is one of the most visited places in Dehradun. The monastery was built in 1965 to promote religious and cultural teachings of Buddhism. It is located at Clement Town which proudly displays 103 feet tall statue of Lord Buddha. The aesthetically designed temple showcases skillful Japanese architecture. The intricate wall paintings, marvelous architecture, sculpted idols and the lively paintings which depicts the life cycle of Lord Buddha are the major attraction of this place. These paintings were painted in pure gold color by 50 skillful artists. Three years of hard work and dedication lead to the outcome of these lively and charming paintings. One can have an enchanting view of the lustrous Doon Valley from the terrace area and feel the fresh breeze gently touching your cheeks. Visitors can also enjoy shopping at the tiny shops which are present in the temple complex. Few eateries are also available inside the temple complex to savor your jaded palates. It’s a place which can be visited all around the year and even better if you carry a camera along with you. 3) Robbers Cave – Robbers Cave is one of the best places to explore in Dehradun. This place was named Robbers Cave by the Britishers as robbers used to take refuge in these caves after robbing. The place is also referred as Gucchu Pani which is located at Anarwala village about 8 kilometers from Dehradun city. Many people come here to explore the unusual cold springs. You can have fun here while splashing cold water on your friends on a sultry afternoon. When you go inside the cave it’s like a quest, people fold their trousers and roll up their sleeves to avoid getting wet yet nobody escapes from the splash of water. One should avoid visiting this place in monsoon season and it’s better if you carry an extra pair of clothing and some food. 4) Asan Barrage - Asan Barrage is located near Dhalipur village which lies at the confluence of two rivers namely Asan and Yamuna. One can spot a large number of migratory birds and threatened bird species which have been listed in the Red Data Book. The barrage is 287.5 meters long and the river bed is 389.0 meters above sea level. The minimum water level is recorded as 402.4 meters above sea level and maximum being 403.3 meters above sea level. If you are a nature lover this place will be a treat to your eyes. The tranquil winds, the lush green surroundings and the melodious voice of the playful birds will make your heart skip a beat. The best time to visit this place is in the month of October and November and in late February and March. This place is truly a bird watchers paradise with birds such as ruddy shellduck, mallard coot, cormorant, egrets, wagtails, pond heron, pallas’s fish eagle, marsh harrier, greater spotted eagle, osprey and steppe eagle visit this area. If you are searching for peace and tranquility in the lap of nature this place will help you to do so. 5) Forest Research Institute - Forest Research Institute was established in the year 1906 which displays authentic Greek Roman infrastructure by C.G Bloomfield in 1929. One cannot marvel but admire the colonial style architecture which is a National Heritage. The Forest Research Institute sprawls over 2,000 acres of lavish vistas and lush green fields which have been well maintained. Many visitors like to have a walk through the trails, take photographs of the museum and some people come here for solitude and mental peace. There are six museums in FRI which are based on social forestry, pathology, silviculture, timber, non-wood forest products and entomology. You will be asked to pay an entry fees of Rs. 10/- and guide services will be available at Rs. 50/-. The timings to visit the museum are from 9:00 am to 5:30 am. The museum is closed on gazette holidays. You can visit this place in any month but don’t forget to carry a camera along with you as the well manicured gardens and the picturesque landscape around the institute will allure you to click some photographs. 6) Clock Tower – Clock Tower which is a prominent landmark of the city is also known as Ghanta Ghar by the local residents. Ghanta which means ‘bell’ and ‘ghar’ means home in Hindi. The Clock Tower is encircled by various commercial centres such as Grand Post Office, shops, eateries, shopping complex, Paltan Market and Indira Market. The Clock Tower has been standing tall much before Independence. Many people come here for shopping spree as it is close to the local market area. The place also notices political gatherings and campaigns from time to time as the political groups are able to gather attention of the public who visit the market area.

Spring semester 2020, I was taking a OS implementation class at Technion university under Prof. Dan Tsafrir guide. The class is based on material of MIT 6.828. We are going to write an exokernel-style operating systems kernel names JOS under x86 platform and then port it to ARM architecture. This repository is here to record all the labs we did during the semester.

JAVA developer assesment test ------------------------------------ Write "BACONATOR" - a Java 12 Spring Boot application conforming the following specification: - providing REST interface (use JAX-RS style) with the "bacon" endpoint "/give-me-bacon/{howmuch}" - upon accessing this endpoint, following happens: - as many times as specified in {howmuch} path parameter of the "bacon" endpoint your app retrieves JSON array of string from https://baconipsum.com/api/?type=all-meat&paras=1 using standard Java 12 HTTP client - application takes note of retrieval start and end timestamp - "runId" field is a random-generated ID (for example UUID) of request/response pair - "items" is array of responses from external bacon service - "data" field inside "items" field in output is actual data retrieved from external service - output contains start and end timestamps for both full request and for each item as well - example of pretty-printed application/json return data: { "runId" : "abcdef", "start": 1234646, "end": 12354587 "items" [ { "start": 1234646, "end": 12354587, "duration": "3h 19m 56s 46ms", "data": ["Alcatra strip cow bacon..."] } ] } - example - app is running on localhost, port 8080 - in the browser I type the following: "http://localhost:8080/give-me-bacon/5" - I receive following response: { "runId" : "axgdas", "items" [ { "start": 1234646, "end": 12354587 "data": ["Alcatra strip cow bacon..."] }, { "start": ... } ... ] } Don't hesitate to use coding tutorials and Stack Overflow! Your evaluation will be based on this task, therefore it is mandatory that you work on this alone and on your own. Estimated time to complete this task is 60-120 minutes for all levels. If it takes you significantly more time, please do not hesitate to tell us. Acceptance criteria: Junior must pass following: --------------------------- - your application must produce runnable spring boot war conforming assignment - if you are unsure how to produce runnable spring boot war application, just follow tutorials - deliver your solution as link to any public git repository - use git to actually push your code (do not upload it manually to repo) - use maven/gradle or any other build system - conform to Google Java style guide - https://google.github.io/styleguide/javaguide.html - if you are unsure, use auto-formatting options Intermediate dev must pass everything above plus following: ------------------------------------- - use JDK 11 HTTP client - use RxJava for parallel bacon JSON retrieval from external service - add statistics endpoint which provides information about - word count (histogram) - number of requests per IP address Senior dev must pass everything above plus following: ------------------------------------- - implement "bacon pool", also known as "source of bacon" or "bacon cache" - choose time period of your liking (e.g. 5 seconds) and fetch single piece of bacon (i.e. single call to baconipsum) on regular basis, then: - store these pieces in queue in the application (disk persistancy is a bonus) - when user requests bacon from the endpoint either supply him with bacon (destroying stored bacon in process) or block until some bacon is available - extend statistics endpoint by average bacon waiting time per request - make sure you synchronize well - bacon is precious resource and single piece of bacon can be returned in single response only Some bonus points: ------------------ - provide REST endpoint to retrieve historic data by their runId (cache in memory) - cache historic run data in embedded database on disk - store history in some event queue (kafka, rabbit) so application behavior can be replayed and analyzed Ending notes: ------------- Overall quality of your code, usage of design patterns, best practices and common sense will be evaluated. You are presenting yourself with this task - please provide production-grade code.

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Opinionated Java Style Guide based on Google & Spring Framework

This app demonstrates how to create a full stack app using Netflix Style micro services in Java Spring Boot that are linked, and a front end application built using AngularJS using the seed App as a base refactored for John Papa's style guide.

스프링 코딩 스타일 가이드

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A Java backend project featuring Spring Boot, Spring Security, and extensive testing. Follows strict development rules, adheres to Google Java Style Guide, and emphasizes comprehensive test coverage.

My own Github page, but I'm using it to show the rendered version of the Spring Style Guide (currently a preliminary draft).

This project is an Expert System designed to analyze and determine a user's Personal Color Type using a rule-based approach. Based on expert knowledge and style guides, it classifies users into color seasons such as Spring, Summer, Autumn, or Winter

we’ll guide you through the entire process of developing a job portal using React for the frontend, Spring Boot for the backend, MongoDB as our database, and Redux for state management. We’ll style the application using Tailwind CSS and leverage Mantine components for a smooth, user-friendly UI experience.